For a moment, Kimmy goes so still that she thinks she might not be able to move again. She's not so naive to think that Darrow is above being so awful, but this is on a whole new level.

Shaking out of her stillness, she tries to cover her back with her arms but it feels and looks unnatural, and so she stops. Gives up. Without context, at least, nobody should know what it means. "Oh."